Solve for x:
2x + 7 = 19
What is x = 6?
This date is also a U.S. holiday that celebrates our freedom from England and the signing of the Declaration of Independence.
What is July 4th, 1776?
This term refers to the main idea or message of a literary work.
What is theme?
Often called the powerhouse of the cell, this organelle generates most of the cell's supply of adenosine triphosphate (ATP).
What is the mitochondrion? (mitochondria)
This instrument has black and ivory keys and is alternately referred to as a strings or percussive instrument.
What is a piano?
This is the very point of an angle, where two lines connect.
What is a vertex?
The assassination attempt of this political figure is widely recognized as the event that kicked off the start of World War I.
Who is Archduke Franz Ferdinand?
The perspective from which a story is told (first person, third person, etc.) is called this.
What is point of view?
This invisible force pulls objects toward the center of the Earth and gives them weight.
What is gravity?
Spring turns to frost and ice in Arendelle, the magical and royal setting of this Disney film.
What is Frozen?
This is the scale factor of these two polygons.

What is 3:2?
This holiday honors the efforts of workforce organizers and unions, and is a celebration of the 8-hour workday, 5-day workweek, and the hard work of unions and workers worldwide.
What is Labor Day?
In the sentence "The dog barked loudly," this specific part of speech is represented by the word "loudly".
What is an adverb?
This scale, ranging from 1 to 10, measures the scratch resistance and hardness of various minerals.
What is the Mohs hardness scale?
This band had a charismatic and operatically talented lead singer and hits like "We Will Rock You" and "Bohemian Rhapsody".
Who is Queen?
This trigonometric ratio is equal to any angle's opposite side/the hypotenuse.
What is sine?
This historical movement emphasized reason, science, and individual rights and helped inspire revolutions in Europe and the Americas.
What is the Enlightenment?
This literary device involves giving human qualities to non-human things.
What is personification?
This chemical messenger, often called the "fight or flight" hormone, is released by the adrenal glands during acute stress.
What is adrenaline?
This was the first computer animated movie ever, and revolves around toys that come to life.
What is Toy Story?
R = (w/5) + 3n
What is w = 5R - 15n
This ancient civilization developed cuneiform writing which allowed for recordkeeping.
What is the Sumerians? (Sumer)
"Peter Piper picked a peck of pickled peppers" serves as a classic example of this repeating consonant sound device.
What is Alliteration?
Solutions with a pH value lower than 7 are classified by chemists as this type of substance.
What is an acid?
This global star has the #1 hit songs "Cruel Summer", "Blank Space", and "All Too Well".
Who is Taylor Swift?